[PATCH 2/3] nvme: introduce max_segments controller attribute

[Max Gurtovoy]

> So for now to be safe it might be a good idea to always use a 4k
> MR page size..
>

So should I send a fix only for the MR page size (4k) for now ?
Or should we add the infrastructure for virt_boundary and max_segments 
per ctrl too ?